LoggingHandler.java — netty Source File

Source Code

/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.channel;

import java.net.SocketAddress;
import java.util.Collections;
import java.util.EnumSet;

final class LoggingHandler implements ChannelInboundHandler, ChannelOutboundHandler {

    enum Event { WRITE, FLUSH, BIND, CONNECT, DISCONNECT, CLOSE, DEREGISTER, READ, WRITABILITY,
        HANDLER_ADDED, HANDLER_REMOVED, EXCEPTION, READ_COMPLETE, REGISTERED, UNREGISTERED, ACTIVE, INACTIVE,
        USER }

    private StringBuilder log = new StringBuilder();

    private final EnumSet<Event> interest = EnumSet.allOf(Event.class);

    @Override
    public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
        log(Event.WRITE);
        ctx.write(msg, promise);
    }

    @Override
    public void flush(ChannelHandlerContext ctx) throws Exception {
        log(Event.FLUSH);
        ctx.flush();
    }

    @Override
    public void bind(ChannelHandlerContext ctx, SocketAddress localAddress, ChannelPromise promise)
            throws Exception {
        log(Event.BIND, "localAddress=" + localAddress);
        ctx.bind(localAddress, promise);
    }

    @Override
    public void connect(ChannelHandlerContext ctx, SocketAddress remoteAddress, SocketAddress localAddress,
            ChannelPromise promise) throws Exception {
        log(Event.CONNECT, "remoteAddress=" + remoteAddress + " localAddress=" + localAddress);
        ctx.connect(remoteAddress, localAddress, promise);
    }

    @Override
    public void disconnect(ChannelHandlerContext ctx, ChannelPromise promise) throws Exception {
        log(Event.DISCONNECT);
// ... (112 more lines)